diff options
| author |   Sandipan Das <sandipan@linux.ibm.com> | 2020-07-27 09:30:40 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-07-29 21:02:10 +1000 |
| commit | c27f2fd1705a7e19ef2dc2b986c0d1cde3c3dbe7 (patch) | |
| tree | 3d0708f0f3338768d87fff8b085e088b5b3e47a0 /tools/testing/selftests/powerpc/mm/Makefile | |
| parent | selftests/powerpc: Add wrapper for gettid (diff) | |
| download | linux-dev-c27f2fd1705a7e19ef2dc2b986c0d1cde3c3dbe7.tar.xz linux-dev-c27f2fd1705a7e19ef2dc2b986c0d1cde3c3dbe7.zip | |
selftests/powerpc: Add test for pkey siginfo verification
Commit c46241a370a61 ("powerpc/pkeys: Check vma before
returning key fault error to the user") fixes a bug which
causes the kernel to set the wrong pkey in siginfo when a
pkey fault occurs after two competing threads that have
allocated different pkeys, one fully permissive and the
other restrictive, attempt to protect a common page at the
same time. This adds a test to detect the bug.
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ce40b6ee270bda52e8f4088578ed2faf7d1d509a.1595821792.git.sandipan@linux.ibm.com
Diffstat (limited to 'tools/testing/selftests/powerpc/mm/Makefile')
| -rw-r--r-- | tools/testing/selftests/powerpc/mm/Makefile | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/mm/Makefile b/tools/testing/selftests/powerpc/mm/Makefile index 5a86d59441dc..740f7854548e 100644 --- a/tools/testing/selftests/powerpc/mm/Makefile +++ b/tools/testing/selftests/powerpc/mm/Makefile @@ -3,7 +3,8 @@ noarg: $(MAKE) -C ../ TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot segv_errors wild_bctr \ - large_vm_fork_separation bad_accesses pkey_exec_prot + large_vm_fork_separation bad_accesses pkey_exec_prot \ + pkey_siginfo TEST_GEN_PROGS_EXTENDED := tlbie_test TEST_GEN_FILES := tempfile @@ -16,8 +17,10 @@ $(OUTPUT)/wild_bctr: CFLAGS += -m64 $(OUTPUT)/large_vm_fork_separation: CFLAGS += -m64 $(OUTPUT)/bad_accesses: CFLAGS += -m64 $(OUTPUT)/pkey_exec_prot: CFLAGS += -m64 +$(OUTPUT)/pkey_siginfo: CFLAGS += -m64 $(OUTPUT)/tempfile: dd if=/dev/zero of=$@ bs=64k count=1 $(OUTPUT)/tlbie_test: LDLIBS += -lpthread +$(OUTPUT)/pkey_siginfo: LDLIBS += -lpthread |